From The Hill: With Mueller’s probe advancing behind closed doors, it is impossible for onlookers to judge the value or extent of any one witness’s cooperation. At the same time, observers say the deals Mueller has struck signal he believes their cooperation to have significant value. “If they have struck a deal where they’re going to cooperate, then that’s a pretty good indication that special counsel’s office believes they have something worth cooperating over,” said Jack Sharman, a former special counsel to Congress for the Whitewater investigation. Read the full story by Morgan Chalfant here.